Narrow down the results/matches

If you run grep-all.sh requests, you get all the item that match that
prefix.  It is a little messy.  Make the match patten more specific so
you only get the library you pass on the command line.

Change-Id: I16544372f7efff28933da728d11f85dc5e5f9aea

tools/grep-all.sh

@@ -31,7 +31,7 @@ declare -a branches=($(git describe --always) origin/master
                     )
 
 function search() {
-    git grep -Ei "^${1}" ${2} -- "${3}" | cut -d: -f4-
+    git grep -Ei "^${1}[=><!]" ${2} -- "${3}" | cut -d: -f4-
 }
 
 printf '\nRequirements\n'